Typewriting machine



June 19, 1928.

A. G. F. KUROWSKI TYPEWRITING MACHINE Filed July 29, 1924 Wye/7 far Affarney Patented June 19, 1928.

UNITED STATES PATENT OFFICE.

ALFRED G. F. KUROWSKI, OF BROOKLYN, NEW" YORK, ASSIGNOR TO UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING MACHINE.

This invention relates generally to typewriting machines, and more particularly to registering or counting mechanism attachable to such machines for keeping track of the amount of work.

One feature of the invention is the provision of means for transmitting the motion of the escapement mechanism to a register or counter of the character mentioned, in such manner as to facilitate running a number into the register.

Another feature of the invention embodies the provision of means for mounting the device as a unit upon a machine of the usual standard construction without making any structural changes in the typewriter.

The register may be easily and quickly attached or detached as a unit without interfering with or disturbing any of the other parts of the machine.

A further feature embraces simplified means for properly adjusting the registering mechanism with respect to the escapement mechanism, when in place upon the machine.

The invention involves the use of a comparatively small number of parts, which may be inexpensively manufactured and easily assembled.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a rear view of a portion of the frame and escapement mechanism of a typewriting machine with the register in position thereon.

Figure 2 is a View of a conventional es capement-wheel, pinion and rack, such as used in a standard typewriting machine.

Figure is a plan view of the mechanism shown in Figure 1, with parts broken away in section for clearness of illustration.

Figure 4 is a vertical section through the registering mechanism, in the direction of the arrows on line 44 of Figure 1.

Reference numeral 10 indicates the frame of: a typewriting machine, which includes a transverse portion or base 11 and a'vertical standard 12. An escapement-wheel 13 is mounted to revolve with any escapementshaft 14, which is suitably journaled in a structure 15, supported upon and secured to the base 11 of the frame 10. The usual pinion 16 is fixed to the escapement-shaft "i' Application filed July 29, 1924. Serial No. 728,833.

14 and meshes with a rack 17, as shown in Figure 2, the shaft being driven by a suitable motor device (not shown), to impart motion to the rack and cause a carriage (not shown) to move in letter-feeding direction. Escapement-rockers 18 are operated by the usual means, well known in connection with machines of this character, to control the movements of the escapement-wheel and thereby the feeding of the carriage. A locknut 19 of the usual rectangular form is received in threaded engagement upon the shaft 14, and it will be noted that the lock nut is characterized by a pair of long parallel sides 20 and cur'vednarrow sides 21, one of the narrow sides of the nut being cut out at 22, to provide a pair of clamping jaws 23. A countersunk screw 24 serves to draw the aws 23 together, and, in this manner, the lock-nut may be adjusted and secured upon the shaft 14. The lock-nut 19 due to its peculiar shape provides a cammi'ng device and is associated with the registering mechanism, forming the present invention; for the purpose of causing the register to operate. The manner of its functioning with relation to the registering mechanism will appear as the description proceeds.

Thus far, the description has been directed to mechanism commonly used in the Underwood standard typewriting machine and is included herein to show how my improved registering mechanism is applied to a machine for the purpose of keeping track of theamount of work Written thereby. The registering mechanism is mounted upon a bracket 25, having a perforation 26 through the upper left portion of the body 25 thereof. A suitable screw 27 threads into the usual screw-threaded hole 28, found upon the left rear standard 12 of a machine of standard construction, the screw projecting slightly beyond the outer face of the stand ard, so as to be received in the perforation 26 of the bracket 25, and a lock-nut 29 threads onto the projecting end of the screw 27 to secure the bracket firmly to the outer face of the standard. The bracket 25 includes a pair of turned-over ears 30 and 31. which are spaced from and overlie the inner face 12 f the standard 12, the ears being perforated and threaded to receive screws 32 and 33, the ends of which bear against the r The purpose of this adjustment will appea face 12 of the standard to hold the bracket in position thereupon. Lock-nuts 34 are provided for the screws 32 and lt'will be readily apparent that upon properly adjusting the screws 32 and '33, the bracket may be turned angularly about the -re\v 2i' to vary" the angle of the bracl with respect to the face 12 of the standard 12.

later in the description. An. extension 35 of the body 25 is disposed parallel with the back edge of the base 11 of the machine and inclined slightly upwardly with respect to said base. The freefend 36 of the extension 35 is provided with a boss 37, having a trans-- ,verse bore 38. A lever 39, having arms and 41, is pivoted for rocking inovement upon the extension 35, by means of a stud 42 carried by the lever, which passes through the bore 38, the stud being drilled out and threaded to receive a screw 43, the head of which acts as a stop against the end of the boss 37 to hold the stud in place, sutlieient clearance being allowed to permit the stud to turn freely. To limit the up ward swing of the arm 41,there is provided upon the extension 35, a stop pin '71, which lies in the path of a notch 72 of said arm. A tension spring 7 3, having one end fixed to thestop pin'l'l and the other end fastened to a stud 7 4 carried by an car 75 of the lever 39, yieldingly holds the arm raised and the notch 72 against the stop pin 71. A register received upon the reduced portion 49 of the hub 48 and fits against the shoulder 5O.

It will be noted, that the diameter of the collar 52 is somewhat greater than the diameter of the hub 48, and thereby provides an annular channel for retaining the lever 51 upon the hub 48, it being understood that sufficient clearness is provided to permit free angular movement of the lever upon the hub. A set-screw 53 passes through a perforation in the collar 52 and then in threaded engagement through the reduced portion 49 of the hub 48 and bears-against the shaft 46 thus acting to hold the collar in position upon the hub and at the same time secure the ratchetwheel 47 totheshaft. The lever 51 has two arms, one of which is designated by the numeral'54 and extends to the point adjacent the free endof the arm 41, which is forked at 55 to receive a pin 56, extending at right angles from the free end of the arm revesee 54. The other arm, which is designated 5?, extends in a direction diametrically opposite from the arm 54, the end being tiliIiGtlnilOWll and perforated at 58. pivoted upon the'lever 51, as indicated at and includes. a vertically-dis osed ting 61, which engage the ratchet-wheel 4'7 a depending arm 62, having'a perforation 63 in the free end thereof. A. tension spring 64. the ends of which are secured within the perforations 58 and 63, causes the fingerfil to be held into yielding engagement with the ratchet wheel 47. A retaining pawl .65 is pivo ed at 66 and is urged into engngcn'l'ent with the ratchet-wheel 4r through the medium of a wire spring 67, the object being to prevent the ratchet-wheel from turning about its pivot while-the driving pawl vis being moved to a position to engage a new tooth. The arm 40of the lever 39 is offset,

as indicated at 68, to extend inwardlyfof the typewriting machine, and the rm end 69 of said arm is disposeddirectly over the and at right angles to the escapement-shaft 14. A roller 70 is mounted upon the free end 69 and is arranged to ride upon the loclo nut 19'to impartmotion to the lever 39, when the escape-ment mechanism is operated as by the striking of the printing keys of the machine. It will be readily appreciated that when the lock-nut 19 is caused to revolve, the roller 70 will ride up on the inclining face of one of the long parallel sides 20, thence around the curvednarrow sides 21 and onto the opposite parallel side 20, thus providing a camming action and causing the lever to partake of a rocking motion against the action of the spring 73 'to hold the arm l-l raised. It will also be seen that in rocking the lever 39 about its pivotal point, that is, the stud 42, the forked portion'j55 of the arm 41 transmits"reciprocating motion to the arm 54 bymcans of the pin 56, thus-causing the lev r 51 to rock about its pivot. This action moves the pawl 59 baeliwardly around the ratchetwhcel 47 to engage a new-v tooth, and, as the roller 70 rides down on one of the sides 20, the pawl is caused to move upwardly by action of the tension spring 73, to rotate the ratchet-wheel 4'7, and there by operate the counter 44. 1 7 v Vertical adjustment of the extension of the bracket 25, to vary the angle of the ex tension 35, may be hacl, as previously described, and such adjustment is provided for the purpose of properly. positioning the roller 70 with respect to the lock-nut 19. 7

It is to be noted that the power required for running a unit into the register is not derived from a single operation of the escapement mechanism, but is contributed fractionally by each of aplurahty of operations of the mechanism, thereby so distribu't A driving'pawl 59 is lock-nut 19 of the escapem'ent mechanism IOU ing the required energy as to render practically negligible the eflort for driving the register.

Variations may resorted to within the spope of the invention. and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, a main frame, escapement mechanism, a cainming device actuated upon the operation of .d escapement mechanism, a standard at the rear of the main frame, a bracket dctachably and adjustably secured to said standard, a regis ter mounted upon the bracket, reciprocating connections associated with the bracket and actuated by the cumming device, and resilient means associated with said reciprocating connections and co-operating with said camming device to drive the register.

2. In a typewriting machine, a main frame, escapement mechanism, a canuning device rotating upon operation of said escapement mechanism, a standard on the main frame, a bracket secured to the stand:.ird.a register mounted upon the bracket, and a lever arm 'ockable upon said bracket arranged to transpose the rotary motion of said amming device into reciprocating motion and thereby operate the register.

In a typewriting machine, a main frame, escapement mechanism, a cumming device rotating upon operation of said escapement mechanism, a standard on the rear of the frame, a bracket mounted upon the rear of the standard by means of a single screwthreadcd stud and nut, whereby said bracket may be moved about said stud as a pivot, a counter mounted upon the bracket, means for driving the counter, including a ratchetwheel fixed to the shaft of the counter,a pawl-carrying member for driving the ratchet-wheel, and a lever fulcruu'ied at apoint between the ends thereof upon the bracket to provide a pair of arms, one of said arms being connected to said pawl-c: rrying member, and the other of said arms arranged to be actuated by the cumming device to cause the counter to be operated, and means associated with said bracket and standard for moving said bracket about its pivot to vary the position of said second-named arm with respect to the camming device.

4. In a typewriting machine, a main frame,

escapement mechanism, a camming device rotating upon operation of said esca-pement mechanism, a standard on the rear of the frame, a bracket mounted upon the rear of the standard by means of a single screwthreaded stud and nut, whereby said bracket may be moved about said stud as a pivot, a counter mounted upon the bracket, means for driving the counter, including a ratchet-- wheel fixed to the shaft of the counter, a pawl-carrying member for driving the ratchet-wheel, and a lever fulcrumed at a point between the ends thereof upon the bracket, to provide a pair of arms, one of said arms being connected to said pawlcarrying member, and the other of said arms arranged to be actuated by the camming device, resilient means co-operating with said camming device for operating the counter, and means carried by said bracket and associated with the standard for moving said bracket about its pivot to vary the position of said second-named arm with respect to the camming device.

5. In a typewriting machine, a main frame, escapement mechanism, a camming device rotating upon operation of said cscapement mechanism, a standard on the rear.

of the frame, a bracket mounted upon the rear of the standard by means of a single screw-threaded stud and nut, whereby said bracket may be moved about said stud as a pivot, a counter mounted upon the bracket, means for driving the counter, including a ratchet-wheel fixed to the shaft of the counter, a pawl-carrying member for driving the ratchet-wheel, a retaining pawl for the ratchetwheel, and a lever fulcrumed at a point between the ends thereof upon the bracket, to provide a pair of arms, one of said arms being connected to said pawl-carrying member, and the other of said arms arranged to be actuated by the camrning device, resilient means co-operating with said eamming device for operating the counter, and means carried by said bracket and associated with the standard for moving said bracket about its pivot, to vary the position of said second-named arm with respect to the camming device.

6. In a typewriting machine, a main frame, a standard on the frame, a bracket and registering mechanism pivotally mounted, as a unit, upon said standard, means for driving said registering mechanism, and means carried by said bracket for adjusting the same angularly about its pivot, so as to vary the position of said registering mecha- 'nism with respect to its driving means.

7. In a typewriting machine, a main frame, a standard on the frame, a bracket and registering mechanism, pivotally mounted, as a unit, upon said standard, means for driving said registering mechanism, and means carried by the bracket and arranged to be adjusted against said standard to cause the bracket and registering mechanism to be shifted bodily: as a unit, about its pivot, and thereby adjust the position of the registering mechanism with respect to its driving means.

8. In a typewriting machine, a main frame, a standard on the frame, a bracket and registering mechanism pivotally mounted, as a unit, upon said standard, means for driving said mechanism, and a pair of setscrews carried by the bracket and arranged to be adjusted against the standard to cause said unit to be shifted angularly about its pivot, and thereby adjust the position of the registering mechanism with respect to its driving means.

9. In a typewriting machine, a main frame, a standard on the frame having an outer face and a side face, a bracket and registering mechanism, pivotally "mounted,

as a unit, upon said outer face, and means.

for driving the mechanism, said bracket including a pair of ears spaced from and overlying the side face of the standard, and set screws passing in threaded engagementthrough theears and arranged to be ad vjusted against said side face, to cause said unit to be movedangularly about its pivot, for adjusting the position of the registering mechanism with respect to its driving means. a

10. 111 a typewriting machine, a main frame, 'a standard on the frame having an outer and a side face, a bracket including a body and registeringrmechanism, pivotally'rnounted, as a unit, upon said outer face,

and means for driving the mechanism, said bracket including a pair of ears disposed" at right angles to the body of the bracket,

to overlie the side face of the standard, and

set-screws passing in threaded engagement through the cars, for adpistment against said side tace, to cause the unit to be moved .angularly about its pivot, for varying the position of the registering ineclianisnrwitli respect to its driving means.

11. In a t DBWlltJIlQ' machine carriage- L a 7 r escapen'ient mechanism including a revoluble for adjusting said bracket about. its pivotv whereby to adjust-the positionof said arm relatively to the cam." i i ALFRED e. r. nunowsni.

CERTIFICATE OF CORRECTION.

Patent No. 1,674,599. Granted June 19, 1928,10

ALFRED G. F. KUROWSKI.

It is hereby certified that the above numbered patent was erroneously issued to "Underwood Typewriter Company", of New York, .N. Y., a Corporation of Delaware, whereas said patent should have been issued to "Underwood Elliott Fisher Company", of New York, N. Y., a Corporation of Delaware, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 31st day of July, A. D. 1928.

M. Moore,

(Seal) Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

PatentNo. 1,674,599. I Granted June 19, 1928,10

ALFRED e. F. KUROWSKI.

It is hereby certified that the above numbered patent was erroneously issued to "Underwood Typewriter Company", of New York, ,N. Y., a Corporation of Delaware, whereas said patent should have been issued to "Underwood Elliott Fisher. Company", of New York, N. Y., a Corporation of Delaware, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 31st day of July, A. D. 1928.

I M. Moore, (Seal) Acting Commissioner of, latents. 

